Mmfp 1209 24 Ported Coyote Heads Dyno Test

23 Run with the Boss intake, the peak power jumped to 571 hp at 7,400 rpm, but torque dropped to 449 lb-ft at 5,300 rpm. The Boss was definitely better suited to high-rpm power, as the stock intake offered more power from 3,000 rpm to 6,500 rpm. For the next 1,000 rpm (and beyond), the Boss is the way to go.